Finding the Third Proportional to 122,959.69 and 264,780.56

Step by Step Solution

1. Step 1: Write the proportion equation
   122,959.69 : 264,780.56 = 264,780.56 : x
2. Step 2: Convert to fraction form
   122,959.69/264,780.56 = 264,780.56/x
3. Step 3: Cross multiply
   122,959.69x = 264,780.56 × 264,780.56
4. Step 4: Simplify right side
   122,959.69x = 70,108,746,277.82
5. Step 5: Solve for x
   x = 70,108,746,277.82/122,959.69
6. Step 6: Final answer
   x = 570,176.68